Book-backing and press-machine combination



Nov. 4, 1930.

J. W. GROSS BOOK BACKING AND PRESS MACHINE COMBINATION Filed Nov. 5. 1928 mmluml IN VEN TOR.

WWJM TTORNEYS.

Patented Nov. 4, 1930 UNITED STATES JACOB W. GROSS, OF HARTFORD, CONNECTICUT BOOK-BACKING AND PRESS-MACHINE COMBINATION Application filed November 5, 1928. Serial No. 317,430.

This invention relates to book backing and press machine combination, and has for its object the production of a press having'a more universalutility than those formerly employed. Specifically, my improved press is designed so that it is capable of use both in the operation of backing the book to be bound and in the subsequent operation of pressing the cover boards upon the book.

The manner in which these improved results are attained will be described in connection with the accompanying drawings, in which:

Fig. 1 is a side elevation of my improved press in use in the cover pressing operation;

Fig. 2 is an end elevation thereof; and

Fig. 3 is a side elevation showing the press in use in the backing operation.

The press is mounted upon side frames 10, formed with suitablelegs 11 by which they may be supported on a work table, and connected by cross members 12. Pivoted at 13 to upstanding lugs let of the side frames is the bottom press plate 15, to the sides of which is attached a yoke 16. Guideways 17 are formed on the surfaces of the yoke, receiving slidingly the upper press plate 18. A stationary nut 19 is secured as by screws 20 to the cross bar 21 of the yoke, and a screw 22, bearing at its upper end a hand wheel 23 and having rotative connection with a thrust block 24 fastened to the upper press plate, is threaded through it. By rotating the handwheel, the two press plates can be forced together in whatever position the yoke may be held.

The yoke 16 has at each side an extension 25 adapted to'pass under a lug 26 when in the position of Fig. 1. Retaining pins 27, each conveniently attached to a stud 28 by a cord 29, can be passed through aligned holes in the lugs, extensions, and side frames to hold the yoke rigidly in the vertical position of Fig. 1. Additional rigidity may be secured by retaining pins 30 passing through holes 31 and 32 formed respectively in extensions 33 of the side frames and in brackets 34 attached to or formed integral with the yoke 16. The pins 30 are also attached for convenience to studs 35 by cords 36, so that they will be kept in readiness for use when withdrawn from the holes to allow the yoke to be swung. The upper-portion of the yoke 16 is formed with recesses 37 which, when the yoke is lowered into the position of Fig. 3, fit over lugs 38 upstanding fromthe side frames 10. Holes 39 in the yoke and 40 in the lugs 38 are brought into aligmnent with each other when the yoke is down, permitting the latter to be secured in place by pins 41 attached by cords 42 to studs 43. In order to counterbalance the weight of the yoke and therefore to make easier the shifting of the press between its horizontal and vertical positions, sprin'gsll are strained betweenfixed lugs 45 on the side frames and extensions 46 projecting downwardly from the yoke. P

In operation, the press is employed either in the vertical position of Fig. 1 or the horizontal position of Fig. 2, enabling the work man to carry through the several operations of forming the back of the book and press ing the covers into place without the necessity of moving from one machine to another. Fig. 3 shows a book 6 in place between the press plates and firmly clamped so that its back 0 may be formed or covered in the usual manner. The press is so designedthat, in spite of its adaptability for use as a vertical press, machine parts interfere with the accesibility of the book in this position. After the book is finished, the cover boards are applied and are then pressed in place, usually by piling several books into a stack and then pressing the stack as a unit. This pressing operation upon a stack of books (i is shown in Fig. 1.

l/Vhat I claim is: a 1. A bookbinding press comprising a frame, a yoke pivot-ed to the frame, a fixed press member carried by the yoke, a movable press member carried by the yoke, means for forcing the members towards each other, means for holding the yoke in either horizontal or vertical position to permit a book being bound to be worked upon in several operations in the same press, and a counterbalancing spring normally urging the yoke into vertical position.

2. A bookbinding press comprising a frame, a yoke pivoted to the frame, a fixed press member carried by the yoke, a movable press member carried by the yoke on one side of its pivot axis, means for forcing the press members towards each other, a plurality of sets of cooperating members extending from the yoke and from the frame, the members of one set coming into alignment with each other while the yoke is in one position and the members of another set coming into alignment with each other when the yoke is in another position, and dowel members adapted to pass through said cooperating members to hold the yoke firmly in position with respect to the frame.

8. A bookbinding press comprising a frame having opposed spaced side members, a yoke pivoted to the side members, a fixed press member carried by the yoke adjacent its pivot and extending at right angles to the yoke, a movable press member carried by the yoke in a position parallel to the fixed press member, means for forcing the press members towards each other, the press members in ving between the side members of the frame as the yoke is moved on its pivot from a vertical to a horizontal position, and means for securing the yoke and the frame rigidly together in either the vertical or the horizontal position of the yoke. V v

4 A bookbinding press comprising a frame having opposed spaced side members, a yoke pivoted to the side members, a fixed press member carried by the yoke adjacent its pivot and extending at right angles to the yoke, guideways formed in the yoke and extending lengthwise interiorly thereof at right angles to the fixedpress member, a movable press member slidable in said gnideways always parallel to the fixed press member irrespective of the position of the yoke with respect to the frame, means for moving the movable press member in said guideways towards and away from the fixed press mem her, the press members moving between the side members of the frame as the yoke is moved from a vertical to a horizontal position, the side frames and the yoke being formed with holes registering when the yoke is in a vertical position and when the yoke is in a horizontal position, and pins fitting in said holes to hold the yoke rigidly to the frame in either of said positions.

In testimony whereof I have affixed my signature.

JACOB W. GROSS. 

